Haikang entrance guard doesn't ring the doorbell

Hikvision access control may not ring the doorbell for the following reasons:

1. The battery may be low and needs to be replaced with a new one.

2. It may be that the buzzer is broken and needs to be replaced with a new buzzer.

3. It may be that the doorbell is disturbed by the signal, so it needs to be moved to other places and replaced with a doorbell with other frequencies.

4. It may be that the installation is too close to the metal object, so it is necessary to remove the metal object and reinstall it.

You can investigate and solve the problem according to the above possible reasons.